344881444385 has 4 divisors (see below), whose sum is σ = 413857733268. Its totient is φ = 275905155504.

The previous prime is 344881444363. The next prime is 344881444387. The reversal of 344881444385 is 583444188443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583444188443 = 17 ⋅34320246379.

It can be written as a sum of positive squares in 2 ways, for example, as 79962266176 + 264919178209 = 282776^2 + 514703^2 .

It is a cyclic number.

It is not a de Polignac number, because 344881444385 - 2²⁰ = 344880395809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 344881444385.

It is not an unprimeable number, because it can be changed into a prime (344881444387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34488144434 + ... + 34488144443.

It is an arithmetic number, because the mean of its divisors is an integer number (103464433317).

Almost surely, 2^344881444385 is an apocalyptic number.

It is an amenable number.

344881444385 is a deficient number, since it is larger than the sum of its proper divisors (68976288883).

344881444385 is an equidigital number, since it uses as much as digits as its factorization.

344881444385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68976288882.

The product of its digits is 23592960, while the sum is 56.

The spelling of 344881444385 in words is "three hundred forty-four billion, eight hundred eighty-one million, four hundred forty-four thousand, three hundred eighty-five".